1.Treatment of Middle Third Humeral Shaft Fractures with Anteromedial Plate Osteosynthesis through an Anterolateral Approach
Kumar BS ; Soraganvi P ; Satyarup D
Malaysian Orthopaedic Journal 2016;10(1):38-43
Background: Treatment of humeral shaft fractures has been
a subject of debate for many decades. Even though a large
majority of humeral shaft fractures can be treated by non
operative methods, few conditions like open fractures, polytrauma,
ipsilateral humeral shaft and forearm fractures
require surgical intervention. The goal of treatment of
humeral shaft fractures is to establish union with an
acceptable humeral alignment and to restore the patient to
pre-injury level of function. The objective was to assess the
incidence of radial nerve palsy, non-union and mean time
required for in anteromedial plate osteosynthesis with
anterolateral approach and also to measure the functional
outcome of this procedure.
Method: A prospective study was conducted in the
Department of Orthopaedics, PESIMSR, Kuppam, Andhra
Pradesh, from August 2012 to August 2015 with a total of 54
patients who were operated with anteromedial plate
osteosynthesis were included in the study. RodriguezMerchan
criteria was used to grade the functional outcome.
Results: Of the 54 patients, 28 (58.85%) were in the age
group of 30-40 years. The most common fracture pattern
identified was A3 type (48.14%).The mean (+ SD) duration
of surgery for anteromedial humeral plating was 53 ± 5.00
minutes. The time taken for the fracture to unite was less
than 16 weeks in the majority or 50 patients (92.59%). Four
(7.40%) patients had delayed union. There was no incidence
of iatrogenic radial nerve palsy. Rodriguez – Merchan
criteria showed that 37(68.51%) of the patients had good and
12 (22.22%) had excellent functional outcome.
Key Words:
Humeral shaft fractures; Plate osteosynthesis; Antero-lateral approach
Fractures, Bone
2.Aphrodisiac activity of ethanolic extract of Pedalium murex Linn fruit
Dk PATEL ; R. KUMAR ; D. LALOO ; K. SAIRAM ; S. HEMALATHA
Asian Pacific Journal of Tropical Biomedicine 2012;(z3):1568-1571
Objective: The study represents an interesting case report for a very good aphrodisiac activity observed during an oral glucose tolerance test performed while evaluating the antidiabetic potential of Pedalium murex Linn. fruit. Methods: Ethanolic extract of Pedalium murex at a dose of 125, 250 and 500 mg/kg p.o. was given to the rats followed by administration of 2 g/kg p.o. of glucose 30 min after the administration of extract. Results: Pregnancy was observed in the treated groups after 20-25 days of treatment in females which resulted in birth of pubs ranging upto ten in some females (more significant in case of 500 mg/kg p.o.). The observation also showed a significant increase in weights of pubs along with a normal behavior pattern. The increased pregnancy rate in the drug treated groups may be due to the healthy viable sperm and enhancement of sexual desire of the rats. Conclusion: From the results it may be concluded that the fruits of the plant may be used as a good aphrodisiac agent to promote fertility rate.
3.Aberrant DNA Double-strand Break Repair Threads in Breast Carcinoma: Orchestrating Genomic Insult Survival.
Azad KUMAR ; Shruti PUROHIT ; Nilesh Kumar SHARMA
Journal of Cancer Prevention 2016;21(4):227-234
Breast carcinoma is a heterogeneous disease that has exhibited rapid resistance to treatment in the last decade. Depending genotype and phenotype of breast cancer, there are discernible differences in DNA repair protein responses including DNA double strand break repair. It is a fact that different molecular sub-types of breast carcinoma activate these dedicated protein pathways in a distinct manner. The DNA double-strand damage repair machinery is manipulated by breast carcinoma to selectively repair the damage or insults inflicted by the genotoxic effects of chemotherapy or radiation therapy. The two DNA double-strand break repair pathways employed by breast carcinoma are homologous recombination and non-homologous end joining. In recent decades, therapeutic interventions targeting one or more factors involved in repairing DNA double-strand breaks inflicted by chemo/radiation therapy have been widely studied. Herein, this review paper summarizes the recent evidence and ongoing clinical trials citing potential therapeutic combinatorial interventions targeting DNA double-strand break repair pathways in breast carcinoma.
Breast Neoplasms*
;
Breast*
;
DNA Repair
;
DNA*
;
Drug Therapy
;
Genotype
;
Homologous Recombination
;
Phenotype
;
Radiotherapy
4.Conservative surgical approach to aggressive benign odontogenic neoplasm: a report of three cases.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2015;41(1):37-42
Aggressive benign odontogenic neoplasms have substantial potential to grow to an enormous size with resulting bone deformities, and they often invade adjacent tissues and spread beyond their normal clinical and radiographic margins; as such, they have a high rate of recurrence. Historically, management (conservative versus aggressive) on the basis of clinical, radiographic and/or histopathologic characteristics has been controversial. However, recent advances in the understanding of the biological features of these lesions may provide greater evidence of the benefits of conservative management. Three patients with different complaints and final histopathologic diagnoses were enrolled in the study. All three cases were treated by a single operator with similar conservative surgical procedures. During follow-up, the patients had uneventful secondary healing and bone regeneration, less packing time than previously reported, no clinical or radiographic evidence of recurrence and no apparent deformity. The aggressive behavior of these lesions requires long clinical and radiographic follow-up. Conservative surgical management may be an option to reduce recurrence and morbidity and increase the probability of uneventful secondary healing and bone regeneration.
Ameloblastoma
;
Basal Cell Nevus Syndrome
;
Bone Regeneration
;
Congenital Abnormalities
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Recurrence
5.Translating blood-borne stimuli: chemotransduction in the carotid body.
Acta Physiologica Sinica 2007;59(2):128-132
The carotid body can transduce hypoxia and other blood-borne stimuli, perhaps including hypoglycaemia, into afferent neural discharge that is graded for intensity and which forms the afferent limb of a cardiorespiratory and neuroendocrine reflex loop. Hypoxia inhibits a variety of K(+) channels in the type I cells of the carotid body, in a seemingly species-dependent manner, and the resultant membrane depolarisation is sufficient to activate voltage-gated Ca(2+) entry leading to neurosecretion and afferent discharge. The ion channels that respond to hypoxia appear to do so indirectly and recent work has therefore focussed upon identification of other proteins in the type I cells of the carotid body that may play key roles in the oxygen sensing process. Whilst a role for mitochondrial and/or NADPH-derived reactive oxygen species (ROS) has been proposed, the evidence for their signalling hypoxia in the carotid body is presently less than compelling and two alternate hypotheses are currently being tested further. The first implicates haemoxygenase 2 (HO-2), which may control specific K(+) channel activation through O(2)-dependent production of the signalling molecule, carbon monoxide. The second hypothesis suggests a role for the cellular energy sensor, AMP-activated protein kinase (AMPK), which can inhibit type I cell K(+) channels and increase afferent discharge when activated by hypoxia-induced elevations in the AMP: ATP ratio. The apparent richness of O(2)-sensitive K(+) channels and sensor mechanisms within this organ may indicate a redundancy system for this vital cellular process or it may be that each protein contributes differently to the overall response, for example, with different O(2) affinities. The mechanism by which low glucose is sensed is not yet known, but recent evidence suggests that it is not via closure of K(+) channels, unlike the hypoxia transduction process.
AMP-Activated Protein Kinases
;
metabolism
;
Animals
;
Carotid Body
;
physiology
;
Chemoreceptor Cells
;
physiology
;
Heme Oxygenase (Decyclizing)
;
metabolism
;
Humans
;
Hypoxia
;
physiopathology
;
Potassium Channels
;
metabolism
;
Reactive Oxygen Species
;
metabolism
6.Pheochromocytoma: An Uncommon Presentation of an Asymptomatic and Biochemically Silent Adrenal Incidentaloma
Sunil Kumar Kota ; Siva Krishna Kota ; Sandip Panda ; Kirtikumar D Modi
Malaysian Journal of Medical Sciences 2012;19(2):86-91
Pheochromocytomas are rare tumours originating from the chromaffin tissue. The clinical manifestations are variable and are not specific; as a result, pheochromocytomas often imitate other diseases. The diagnosis is usually established by biochemical studies, i.e., the measurement of catecholamines or their metabolites in urine or plasma, followed by radiographic and scintigraphic studies for localisation. Surgical removal of the tumour is the preferred treatment. We report a 30-year-old woman presenting with an adrenal incidentaloma that was 7.6 × 5.3 × 4.8 cm in size on an abdominal computed tomography scan. Investigations for adrenal hormones, including a low-dose dexamethasone suppression test, plasma aldosterone level, 24-hour urinary metanephrine and vanillylmandelic acid levels, and plasma metanephrine level were all within the normal ranges. During the surgical resection, the patient had a hypertensive spell. Surgery was postponed, and the blood pressure was adequately controlled with α blockers, followed by β blockers. After 2 weeks, the surgery was followed by a pathological biopsy that confirmed the pheochromocytoma diagnosis.
7.Strategic planning and designing of a hospital disaster manual in a tertiary care, teaching, research and referral institute in India
Talati SHWETA ; Bhatia PRATEEK ; Kumar ASHOK ; Gupta K. A. ; Ojha D COL.
World Journal of Emergency Medicine 2014;5(1):35-41
BACKGROUND:As per the "Disaster Management Act, 2005" of India, it is mandatory for government hospitals in India to prepare a disaster plan. This study aimed to prepare a disaster manual of a 1900 bed tertiary care hospital, in consultation and involvement of all concerned stakeholders. METHODS:A committee of members from hospital administration, clinical, diagnostic and supportive departments worked on an initial document prepared according to the Act and gave their inputs to frame a final disaster manual. RESULTS:The prepared departmental standard operating procedures involved 116 people (doctors and paramedical staff), and were then synchronized, in 12 committee meetings, to produce the final hospital disaster manual. CONCLUSIONS:The present disaster manual is one of the few comprehensive plans prepared by the stakeholders of a government hospital in India, who themselves form a part of the disaster response team. It also helped in co-ordinated conduction of mock drills.
8.Non-homologous End Joining Inhibitor SCR-7 to Exacerbate Low-dose Doxorubicin Cytotoxicity in HeLa Cells.
Ajay KUMAR ; Devyani BHATKAR ; Devashree JAHAGIRDAR ; Nilesh Kumar SHARMA
Journal of Cancer Prevention 2017;22(1):47-54
Among the genotoxic drug regimens, doxorubicin (DOX) is known for its high-dose side effects in several carcinomas, including cervical cancer. This study reports on testing the combined use of a DOX genotoxic drug and SCR-7 non-homologous end joining (NHEJ) inhibitor for HeLa cells. An in vitro DNA damaging assay of DOX was performed on plasmid and genomic DNA substrate. In vitro cytotoxicity was investigated using trypan blue dye exclusion, DNA metabolizing, and propidium iodide-based flow cytometric assays. DOX (between 20–100 μM) displayed clear DNA binding and interaction, such as the shearing and smearing of plasmid and genomic DNA. DNA metabolizing assay data indicate that HeLa lysate with DOX and SCR-7 treatment exhibited better in vitro plasmid DNA stability compared with DOX treatment alone. SCR-7 augmented the effects of low-dose DOX by demonstrating enhanced cell death from 15% to 50%. The flow cytometric data also supported that the combination of SCR-7 with DOX lead to a 23% increase in propidium iodide-based HeLa staining, thus indicating enhanced death. In summary, the inhibition of NHEJ DNA repair pathway can potentiate low-dose DOX to produce appreciable cytotoxicity in HeLa cells.
Cell Death
;
DNA
;
DNA Damage
;
DNA End-Joining Repair
;
DNA Repair
;
Doxorubicin*
;
Drug Therapy
;
Genomic Instability
;
HeLa Cells*
;
Humans
;
In Vitro Techniques
;
Plasmids
;
Propidium
;
Trypan Blue
;
Uterine Cervical Neoplasms
9.Epigenomic Hard Drive Imprinting: A Hidden Code Beyond the Biological Death of Cancer Patients.
Pritish NILENDU ; Nilesh Kumar SHARMA
Journal of Cancer Prevention 2017;22(4):211-218
Several genetic and epigenetic theories have been suggested to explain the intricacies of life and death. However, several questions remain unsettled regarding cellular death events, particularly of living tissue in the case of cancer patients, such as the fate and adaptation of cancer cells after biological death. It is possible that cancer cells can display the intent to communicate with the external environment after biological death by means of molecular, genetic, and epigenetic pathways. Whether these cancer cells contain special information in the form of coding that may help them survive beyond the biological death of cancer patients is unknown. To understand these queries in the cancer field, we hypothesize the epigenomic hard drive (EHD) as a cellular component to record and store global epigenetic events in cancerous and non-cancerous tissues of cancer patients. This mini-review presents the novel concept of EHD that is reinforced with the existing knowledge of genetic and epigenetic events in cancer. Further, we summarize the EHD understanding that may impart much potential and interest for basic and clinical scientists to unravel mechanisms of carcinogenesis, therapeutic markers, and differential drug responses.
Carcinogenesis
;
Chromatin
;
Clinical Coding
;
Epigenomics*
;
Humans
10.MicroRNAs: a new ray of hope for diabetes mellitus.
Munish KUMAR ; Sayantan NATH ; Himanshu K PRASAD ; G D SHARMA ; Yong LI
Protein & Cell 2012;3(10):726-738
Diabetes mellitus has become one of the most common chronic diseases, thereby posing a major challenge to global health. Characterized by high levels of blood glucose (hyperglycemia), diabetes usually results from a loss of insulin-producing β-cells in the pancreas, leading to a deficiency of insulin (type 1 diabetes), or loss of insulin sensitivity (type 2 diabetes). Both types of diabetes have serious secondary complications, such as microvascular abnormalities, cardiovascular dysfunction, and kidney failure. Various complex factors, such as genetic and environmental factors, are associated with the pathophysiology of diabetes. Over the past two decades, the role of small, single-stranded noncoding microRNAs in various metabolic disorders, especially diabetes mellitus and its complications, has gained widespread attention in the scientific community. Discovered first as an endogenous regulator of development in the nematode Caenorhabditis elegans, these small RNAs post-transcriptionally suppress mRNA target expression. In this review, we discuss the potential roles of different microRNAs in diabetes and diabetes-related complications.
Animals
;
Diabetes Complications
;
genetics
;
metabolism
;
Diabetes Mellitus
;
genetics
;
metabolism
;
Glucose
;
metabolism
;
Homeostasis
;
genetics
;
Humans
;
Insulin
;
metabolism
;
MicroRNAs
;
biosynthesis
;
genetics
;
metabolism