Retinopathy of prematurity - Intersibling divergence of risk factors among twins
Published on: 19th February, 2020
Retinopathy of prematurity (ROP) is a consequence of an arrest in normal retinal neural and vascular development, which determines the aberrant retinal regeneration [1,2].
ROP is a disease process mostly reported in preterm neonates ranging from mild, transient changes in the retina with regression to severe progressive vasoproliferation, scarring, detachment of retina and blindness and it is common blinding disease in children and a major cause of vision loss among preterm infants [3]. Today it is well known that oxygen therapy is not the single causative factor, but many other risk factors play a causative role in the pathogenesis of ROP [4,5].
The risk factors for ROP include oxygen administration, hypoxia, hypercapnia, blood transfusion exchange transfusion, apnea,sepsis and total parenteral nutrition. The incidence of ROP has been reported to be similar in multiple and singleton births [6-8]. Twin studies show that from 70% to 80% of the susceptibility to ROP is conditioned by genetic factors [9,10].
Hence this study is to find out the incidence of ROP in twins in a tertiary care centre in a developing country. It also attempts to identify the difference in risk factors among twins which predispose to ROP in Neonatal Intensive Care Unit.
Effect of laparoscopic salpingectomy on subsequent ovarian response after controlled ovarian hyperstimulation
Published on: 18th September, 2019
OCLC Number/Unique Identifier: 8267196070
Background: The effect of salpingectomy on ovarian response is a matter of debate. Due to conflicting data, alternative techniques were developed to perform salpingectomy for treatment of hydrosalpinges in infertile patients. This study aims to evaluate the effect of salpingectomy on ovarian response after stimulation with gonadotropins.
Methods: In a retrospective analysis, one hundred fifty-seven patients with tubal infertility were divided into three groups according to their surgical histories: bilateral salpingectomy (BS group); unilateral salpingectomy (US group); and no history of salpingectomy (NS group). Ovarian response and IVF outcomes were compared between groups by analysis of variance. Prognostic factors for ovarian response were estimated by linear regression models.
Results: In the BS group, the total numbers of oocytes retrieved, and embryos obtained were significantly lower than those in the NS group (p = 0.02). Poor ovarian response was also more frequent in the BS group (p = 0.02). In the US group, follicle development was reduced on the operated side. This effect was more pronounced when salpingectomies were performed for hydrosalpinges than when performed for ectopic pregnancies, and significant decreases were observed in follicle recruitment (p = 0.005) and oocyte retrieval (p = 0.02) on the operated side.
Conclusion: Salpingectomy could have a minor negative effect on ovarian response. This is particularly true with bilateral salpingectomies, in which the ovarian blood supply could be disrupted, with no possible compensation by the contralateral side.
Neuroscience, Rehabilitation and New Technologies: Perspectives and critical points for a synergistic development
Published on: 28th November, 2018
OCLC Number/Unique Identifier: 7935874172
The growth of Rehabilitation, in all of its field and mainly in neuro-rehabilitation applications and settings, is showing increasingly strong interaction with the growth of technology and its innovative applications.
Nevertheless, is should be stressed that the use of machinery has always been a fundamental mainstay of Rehabilitation practices facing the whole person’s aspects and involving the whole physical world around the disabled people as it is: as it was in the past with physical exercises, physical modalities, and in many other trainings and activities that employed physical and technological means as Aids, Prostheses and Orthotics.
Germline BRCA1 Mutation inSquamous Cell Carcinoma of Oesophagus: Driver versus Passenger Mutation
Published on: 2nd July, 2024
We report a rare case of 62-year-old South Asian women who visited the Molecular Pathology and Genomics Department for hereditary germline cancer genetic testing after being diagnosed with oesophageal cancer, reported as invasive keratinizing squamous cell carcinoma metastasized to the lymph nodes. Her personal history revealed that she was diagnosed with triple-negative breast cancer five years before oesophageal cancer. Germline cancer testing showed pathogenic variants in BRCA1 gene c.68_69delAG, which proved it a hereditary breast and ovarian cancer syndrome. She was started on PARP inhibitors but developed some secondary respiratory failure and succumbed to death. Less than 10 cases have been reported in the literature of the association of germline BRCA1 and Squamous cell Carcinoma – the esophagus. The article focuses on the probable pathogenesis of BRCA1 mutation with non-classic malignancies and the response of Poly adenosine diphosphate ribose polymerase inhibitors (PARP) inhibitors in such a scenario. We report an unusual manifestation of the BRCA1 gene with second primary oesophageal squamous cell cancer occurring five years later to triple-negative breast cancer.
Using correlative microscopy for studying and treatment of Mycoplasma infections of the ophtalmic mucosa
Published on: 12th March, 2020
OCLC Number/Unique Identifier: 8553865045
Purpose: We have studied in 18-month 21 patients showing kerato-conjunctivitis and/or dermato-blefaritis, where we will find a constant presence of mycoplasma in SEM optical cytology samples. The 21 patients were divided as follows: 7 allergic, 7 alleged allergic and 7 not-allergic, this division it makes between a clinical approach considering clinical history and symptoms. At the first examination, 16 of the 21 patients had a single or multiple infection in which the main pathogenic element was found to be Mycoplasma; the remaining 7, 4 of them were suspected allergic patients, 2 of it, were allergic subjects with the presence of eosinophils or mast cells.
Material and methods: All the study is constructed on citological optical microscopy and citological electron scanning microscopy (SEM) images for demonstrate the efficacy of the SEM in clinical approach at allergic, not allergic and suspected allergic patients.
Therapeutic treatment and Results: Treatment of the allergic and false allergic patients has made with local somministration of galenic composition with ialuronic acid 3 ml and Tetracycline hydrochloride 30 mg and with low level of cortisone and antisthaminic therapy. This treatment is necessary to eradicate the Mycoplasma infection and counteract toxic action of this pathogen on mucosa.
Discussion: After appropriate therapy we note that allergic patients have a greater predisposition to redundancy in infections in the short period (minimum 20 days), while alleged allergic patients have more prolonged infection periods (between 3 and 5 months), with constant presence at low levels of persistent Mycoplasma. The latter continue to show signs and symptoms similar to allergic patients, but with a negative test for tear IgE and absence of eosinophils and/or mast cells, in the optical and SEM samples displayed.
Dr. Saul Hertz Discovers the Medical Uses of Radioiodine (RAI)
Published on: 13th September, 2018
OCLC Number/Unique Identifier: 7856192339
Primary sources document Dr. Saul Hertz (1905 - 1950) as conceiving and developing radioiodine (RAI) as a diagnostic tool and as a therapy for thyroid diseases. Dr. Hertz was the first and foremost person to develop the experimental data on RAI and apply it to the clinical setting.
Saul Hertz was born on April 20,1905 to Jewish parents who had immigrated to Cleveland, Ohio. He received his A.B. from the University of Michigan in 1925 with Phi Beta Kappa honors. After graduating from Harvard Medical School in 1929, at a time of quotas for outsiders, he fulfilled his internship and residency at Cleveland’s Mt. Sinai Hospital.
In 1931, he came back to Boston to join the newly formed Thyroid Unit at The Massachusetts General Hospital serving as the Chief from 1931 - 1943.
The rising role of natural killer cells in patients with malignant hematological disorders and in recipients of hematopoietic stem cell transplantation
Published on: 1st October, 2019
OCLC Number/Unique Identifier: 8333010200
Natural killer (NK) cells, the third population of lymphoid cells, comprise 5%-25% of peripheral blood (PB) lymphocytes and represent the first line of defense against infections and tumors [1-7]. They can be derived from: bone marrow, PB, cryopreserved umbilical cord blood (UCB), human embryonic stem cells (hESCs), induced pluripotent stem cells (iPSCs), and various cell lines such as NK-92 and KHYG-1 [1]. NK cells; which have been divided into cytotoxic, tolerant, and regulatory subsets; are classified into: (1) naïve CD56 bright CD 16 dim CD 3 dim cells, (2) mature CD56 dim CD16 bright CD3 dim cells, and (3) lymphoid tissue-resident CD69+/CXCR6+ NK cells [1,2,8-11]. Although NK cells have been traditionally considered as part of the innate immune system, they have recently been shown to exhibit many of the features associated with adaptive immunity [8,12]. The functions of NK cells which are influenced by several cytokines include: elimination of infected cells, destruction of cancer cells, reducing the incidence of graft versus host disease (GVHD) following hematopoietic stem cell transplantation (HSCT), and regulation of pregnancy outcome [10,11,13].
Recurrent Cardiac Events Driven by Prothrombotic Burden in a Patient Undergoing Lipoprotein Apheresis for High Lp(a) Levels
Published on: 15th March, 2017
OCLC Number/Unique Identifier: 7317653746
Introduction: Lipoprotein (a) [Lp(a)] is a marker for cardiovascular disease, involved in pathogenesis and progression of atherosclerosis. In selected high-risk patients, lipoprotein-apheresis could optimize secondary prevention and improve prognosis.
Aim: We presented the case of a 49-year-old man with high lipoprotein (a) levels and recurrent cardiac adverse events, despite maximal pharmacological therapy.
Case report: Four years before the admission at our Centre, he presented an anterior STEMI, treated with angioplasty and implantation of a drug eluting stent on left anterior descending artery, at the age of 47 years, in September 2012; one month later, the patients presented a new episode of angina, and exams showed a critical stenosis in the right coronary artery, treated by angioplasty and implantation of drug eluting stent. Because of high Lp(a) plasma levels, patient was subsequently on regularly 7-10 day lipoprotein apheresis.
Results and discussion: A thrombophilic screening was performed, showing the simultaneous presence of heterozygous V Leiden mutation and prothrombin G20210A mutation. He referred to our Centre in order to optimize therapy; we performed an endothelial function assessment showing a severe dysfunctional pattern.
Because of these findings, we prescribed dual antiplatelet therapy, and we added omega-3 fatty acids and association with nicotinic acid/laropiprant. According with current guidelines, considering the high risk of bleeding, we preferred not to administer anticoagulant therapy. At 6-month and 1-year follow up the patient continued lipoprotein apheresis and was asymptomatic for other cardiovascular events.
Conclusions: The assessment for the eventual presence of thrombophilia might become a useful tool in clinical practice for high-risk selected patients.
Can we predict Alzheimer’s Disease through the eye lens?
Published on: 22nd May, 2020
OCLC Number/Unique Identifier: 8601971854
Alzheimer’s Disease (AD) is a common dementia problem of the old population. The two main hallmarks of AD are tau protein and amyloid-beta protein. The relevant investigations on AD suggest that these proteins are also seen in the eye. There are many tests and imaging modalities are used for AD diagnosis. But these techniques are still unable to predict the disease effectively. In this regard, the lens of the eye may help in diagnosing AD. Therefore, a reliable technique for measuring the lens or retina must be selected. In this paper, we focus on the different types of retinal diseases occur in AD patients and the use of the Optical Coherence Tomography (OCT) technique is used for diagnosing AD.
The Daring of Biosimilars
Published on: 1st May, 2017
OCLC Number/Unique Identifier: 7317653965
The so-called “biotechnological revolution” is changing the structure of the Pharmacopoeia [1]. The space of biological products, previously limited to blood products and vaccines, grew from the introduction of first recombinant therapeutics in the 1980s until attaining a 25% by value of the pharmaceutical market. This share is expected to reach 50% in the coming years. More than 80 biotechnology drugs have entered the market in the last ten years. It is estimated that there are more than 900 biological products on development for more than 100 diseases [2].
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