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1.
Indian Heart J ; 75(5): 370-375, 2023.
Article in English | MEDLINE | ID: mdl-37652199

ABSTRACT

OBJECTIVES: The presentation and outcomes of acute decompensated heart failure (ADHF) during COVID times (June 2020 to Dec 2020) were compared with the historical control during the same period in 2019. METHODS: Data of 4806 consecutive patients of acute HF admitted in 22 centres in the country were collected during this period. The admission patterns, aetiology, outcomes, prescription of guideline-directed medical therapy (GDMT) and interventions were analysed in this retrospective study. RESULTS: Admissions for acute heart failure during the pandemic period in 2020 decreased by 20% compared to the corresponding six-month period in 2019, with numbers dropping from 2675 to 2131. However, no difference in the epidemiology was seen. The mean age of presentation in 2019 was 61.75 (±13.7) years, and 59.97 (±14.6) years in 2020. There was a significant decrease in the mean age of presentation (p = 0.001). Also. the proportion of male patients decreased significantly from 68.67% to 65.84% (p = 0.037). The in-hospital mortality for acute heart failure did not differ significantly between 2019 and 2020 (4.19% and 4.,97%) respectively (p = 0.19). The proportion of patients with HFrEF did not change in 2020 compared to 2019 (76.82% vs 75.74%, respectively). The average duration of hospital stay was 6.5 days. CONCLUSION: The outcomes of ADHF patients admitted during the Covid pandemic did not differ significantly. The length of hospital stay remained the same. The study highlighted the sub-optimal use of GDMT, though slightly improving over the last few years.


Subject(s)
COVID-19 , Heart Failure , Humans , Male , Middle Aged , Aged , Heart Failure/epidemiology , Heart Failure/therapy , Retrospective Studies , Stroke Volume , COVID-19/epidemiology , Hospitalization
2.
J Public Aff ; 21(4): e2721, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34512184

ABSTRACT

Effective crisis communication is critical for successful crisis management. The current study is an attempt to unravel the public communication efforts of the Kerala government in its successful Covid-19 crisis management efforts during the first wave of the pandemic. The findings of the study indicate that the government has successfully used pre-crisis communication to inoculate the stakeholders, 'steal thunder', and bolster their crisis management capabilities. Effective crisis communication, by the government, has ensured proper information management, media management, right supportive action, and direct communication with stakeholders. Effective communication has also helped the government in garnering favourable constituent attribution, positive framing, positive affect in stakeholder, and enlist active stakeholder participation in crisis management; resulting in, effective crisis management and enhanced reputation for the government. The study unravels the best practices of the Kerala government, in public crisis communication, during the pre-crisis and crisis stages of the first wave of the pandemic and proposes a Kerala model of crisis communication. The model can be used as a reference for future government communication efforts during a crisis across geographies.

3.
J Pharm Bioallied Sci ; 13(Suppl 1): S716-S720, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34447188

ABSTRACT

INTRODUCTION: Axial globe position assessment is commonly carried out with Hertels Exophthalmometer. Hertels requires an intact lateral orbital rim for its placement, which is often fractured in zygomatic fractures. Hence, to overcome this problem, we have modified the instrument for its application in zygomatic/orbital fractures. Reliability of this Modified Hertels Exopthalmometer has been already validated in normal healthy patients. Therefore, the aim of this study is to assess the efficacy of the Modified Hertels Exophthalmometer in pateints with zygomatic/orbital fracture. MATERIALS AND METHODS: This is a prospective study carried out between April 2015 and October 2017, including 20 patients with a mean age of 34 years. Enophthalmos was measured using Modified Hertels in patients with unilateral orbital/zygomatic fracture indicated for surgical intervention by a single observer. The data was collected and statistically analyzed. Paired sample t-test was done to compare the preoperative exophthalmometer reading with readings at different time points. RESULTS: A statistically significant difference was noted (P = 0.031) among the variables of Modified Hertels. We believe this instrument to be of practical use in the assessment of enophthalmos/exophthalmos in patients with lateral orbital trauma, surgery or disease and also precludes the use of rim-based exophthalmometry and other modifications of same.

4.
J Pharm Bioallied Sci ; 13(Suppl 1): S721-S724, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34447189

ABSTRACT

INTRODUCTION: The aim of this study was to demonstrate if articaine hydrochloride administered alone as a single buccal infiltration in maxillary tooth extraction can provide adequate palatal anesthesia as compared to buccal and palatal injection using lidocaine and bupivacaine. MATERIALS AND METHODS: A prospective double-blinded trial was conducted on 150 patients who required maxillary tooth extraction. The patients were divided into three different groups consisting of 50 patients each. Each group was administered with 4% articaine into buccal vestibular mucosa of the tooth to be extracted, 2% lignocaine and 0.5% bupivacaine was injected into buccal and palatal side of the tooth to be extracted, respectively. Following the tooth extraction, all patients were asked to complete a 10-score Visual Analog Scale (VAS) and 5-score facial pain scale (FPS) to assess the pain on extraction. RESULTS: According to the VAS and FPS scores, the pain on extraction between buccal infiltration of articaine and the routine buccal and palatal infiltration of lignocaine was statistically significant. CONCLUSION: The routine use of a palatal injection for extraction of maxillary teeth may not be required when articaine is used as a local anesthetic solution.

5.
J Phys Condens Matter ; 33(42)2021 Aug 10.
Article in English | MEDLINE | ID: mdl-34284355

ABSTRACT

Electron correlation in transition metal oxides (TMOs) is an intriguing topic in condensed matter physics, revealing a wide variety of exotic physical properties. Investigating low-energy carrier dynamics by terahertz (THz) spectroscopy is an efficient route to obtain the essential insights into electron correlation. In the present study, THz-time-domain spectroscopy is employed to probe electron correlation in SrVO3epitaxial thin films. The low energy carrier dynamics of SrVO3in the range of 0.2-6.0 meV shows a typical metallic behavior as overserved in dc transport measurements. The obtained temperature-dependent optical parameters provide evidence of mass renormalization in the low energy regime and carrier momentum relaxation happens via the electron-electron scattering mechanism. Overall, the frequency and temperature-dependent optical parameters indicate the Fermi liquid ground state in a Mott-Hubbard type correlated metal SrVO3thin film. Our results provide significant insight on low energy carrier dynamics in the correlated electron system, particularly perovskite-basedd1TMOs.

6.
Peptides ; 132: 170373, 2020 10.
Article in English | MEDLINE | ID: mdl-32679168

ABSTRACT

Tuberculosis (TB) is a devastating infectious disease that causes a high rate of mortality. Drugs with new modes of action are needed to overcome this scenario. Cationic antibacterial peptides can serve as a potential alternative to existing TB drugs as they target the entire bacterial membrane for activity, thereby reducing the probability of development of drug resistance. In this study, we report anti-tuberculosis activity of B1CTcu5, a peptide that belongs to brevinin-1 family of antimicrobial peptides. This peptide possesses potent in vitro inhibitory activity against M. tuberculosis at 12.5 µg/mL but was not active against M. smegmatis. B1CTcu5 successfully eliminated intracellular mycobacteria without inducing cytotoxicity to the human macrophages at the concentrations tested. This peptide can be used as a template to design peptide-based anti-tubercular agents.


Subject(s)
Amphibian Proteins/chemical synthesis , Antimicrobial Cationic Peptides/pharmacology , Antitubercular Agents/pharmacology , Anura/physiology , Macrophages/drug effects , Mycobacterium tuberculosis/drug effects , Tuberculosis/drug therapy , Amphibian Proteins/pharmacology , Animals , Antimicrobial Cationic Peptides/chemical synthesis , Cells, Cultured , Humans , Macrophages/metabolism , Microbial Sensitivity Tests/methods , Mycobacterium tuberculosis/isolation & purification , Structure-Activity Relationship , Tuberculosis/metabolism , Tuberculosis/microbiology
7.
ACS Nano ; 14(2): 2285-2295, 2020 02 25.
Article in English | MEDLINE | ID: mdl-31976649

ABSTRACT

Membrane protein pores have demonstrated applications in nanobiotechnology and single-molecule chemistry for effective detection of biomolecules. Here, we define the molecular basis of carbohydrate polymers translocation through a substrate-specific bacterial nanopore, CymA, which has a 15-residue N terminus segment inside the pore, restricting its diameter. Using single-channel recordings, we determined the kinetics of cationic cyclic oligosaccharide binding and elucidated the translocation mechanism across the pore in real-time. The cationic cyclic hexasaccharide binds to the densely packed negatively charged residues at the extracellular side of the pore with high affinity, facilitating its entry into the pore driven by the applied voltage. Further, the dissociation rate constant increased with increasing voltages, indicating unidirectional translocation toward the pore exit. Specifically, a larger cationic cyclic octasaccharide rapidly blocked the pore more effectively, resulting in the complete closure of the pore with increasing voltage, implying only strong binding. Further, we show that uncharged oligosaccharides exclusively bind to the extracellular side of the pore and the electroosmotic flow most likely drives their translocation. We propose that CymA favors selective translocation of cyclic hexasaccharide and linear maltooligosaccharides due to an asymmetrical charge pattern and the N terminus that regulates the substrate transport. We suggest that this substrate-specific nanopore with sophisticated geometry will be useful for complex biopolymer characterization.


Subject(s)
Bacterial Proteins/metabolism , Klebsiella oxytoca/chemistry , Nanopores , Bacterial Proteins/chemistry , Models, Molecular , Particle Size , Substrate Specificity , Surface Properties
9.
J Am Chem Soc ; 141(7): 2949-2959, 2019 02 20.
Article in English | MEDLINE | ID: mdl-30702873

ABSTRACT

The porinACj is an α-helical porin that spans the mycolic acid outer membrane of Gram-positive mycolate, Corynebacterium jeikeium. Here, we report that a 40-amino acid, synthetic peptide, pPorA corresponding to porin PorACj, inserts into the lipid bilayers and forms well-defined pores. By electrical recordings, we measured the single-channel properties that revealed the autonomous assembly of large conductance ion-selective synthetic pores. Further, we characterized the functional properties by blocking the peptide pores by cyclodextrins of different charge and symmetry. We deduced the subunit stoichiometry and putative structure of the pore by site-specific chemical modification in single-channel electrical recordings and gel electrophoresis. On the basis of these findings, we suggest that this is a large functional uniform transmembrane pore built entirely from short synthetic α-helical peptides. Accordingly, we propose a model demonstrating structural assembly of large α-helix-based peptide pores for understanding the action of antimicrobial peptides and for the design of pores with applications in biotechnology.


Subject(s)
Peptides/chemistry , Porins/chemistry , Amino Acid Sequence , Corynebacterium/chemistry , Cyclodextrins/metabolism , Cysteine/chemistry , Lipid Bilayers/metabolism , Models, Molecular , Peptides/metabolism , Porins/metabolism , Protein Binding , Protein Conformation, alpha-Helical , Protein Structure, Quaternary
10.
Indian J Dent Res ; 29(6): 844-846, 2018.
Article in English | MEDLINE | ID: mdl-30589018

ABSTRACT

Angiokeratoma is a benign cutaneous lesion of capillaries. It is characterized by large dilated blood vessels in the superficial dermis and hyperkeratosis of extremities. It is mostly seen in generalized form affecting the extremity of the body, but we report this case of solitary angiokeratoma of the tongue which is a very rare type.


Subject(s)
Angiokeratoma/pathology , Tongue Neoplasms/pathology , Tongue Neoplasms/surgery , Angiokeratoma/diagnostic imaging , Angiokeratoma/surgery , Child , Humans , Magnetic Resonance Imaging , Male , Tomography, X-Ray Computed , Tongue/diagnostic imaging , Tongue/pathology , Tongue Neoplasms/diagnostic imaging
11.
Indian J Dent Res ; 29(2): 252-253, 2018.
Article in English | MEDLINE | ID: mdl-29652024

ABSTRACT

Recent trends in maxillofacial surgery are to reduce the trauma to the adjacent soft tissue. The distoangular impaction presents a challenge to the maxillofacial surgeon and also results in more surgical morbidity. Here, we present a minimally invasive extraction technique for the distoangular mandibular third molar impaction.


Subject(s)
Alveolar Process/surgery , Molar, Third/surgery , Tooth Extraction/methods , Tooth, Impacted/surgery , Humans , Mandible
12.
RSC Adv ; 8(65): 37492-37502, 2018 Nov 01.
Article in English | MEDLINE | ID: mdl-35557801

ABSTRACT

Herein, graphene oxide (GO) has been attached with core-shell upconversion-silica (UCN-SiO2) nanoparticles (NPs) to form a GO-UCN-SiO2 hybrid nanocomposite and used for controlled drug delivery. The formation of the nanocomposite has been confirmed by various characterization techniques. To date, a number of reports are available on GO and its drug delivery applications, however, the synergic properties that arise due to the combination of GO, UCNPs and SiO2 can be used for controlled drug delivery. New composite UCN@SiO2-GO has been synthesized through a bio-conjugation approach and used for drug delivery applications to counter the lack of quantum efficiency of the upconversion process and control sustained release. A model anticancer drug (doxorubicin, DOX) has been loaded to UCNPs, UCN@SiO2 NPs and the UCN@SiO2-GO nanocomposite. The photosensitive release of DOX from the UCN@SiO2-GO nanocomposite has been studied with 980 nm NIR laser excitation and the results obtained for UCNPs and UCN@SiO2 NPs compared. It is revealed that the increase in the NIR laser irradiation time from 1 s to 30 s leads to an increase in the amount of DOX release in a controlled manner. In vitro studies using model cancer cell lines have been performed to check the effectiveness of our materials for controlled drug delivery and therapeutic applications. Obtained results showed that the designed UCN@SiO2-GO nanocomposite can be used for controlled delivery based therapeutic applications and for cancer treatment.

13.
J Phys Condens Matter ; 29(2): 025805, 2017 Jan 18.
Article in English | MEDLINE | ID: mdl-27842001

ABSTRACT

The CaRuO3 is a non-Fermi liquid pseudo-cubic perovskite with a magnetic ground state on the verge of phase transition and it lies in the vicinity of the quantum critical point. To understand the sensitivity of its ground state, the effects of subtle aliovalent chemical disorder on the static and high frequency dynamic conductivity in the coherently strained structures were explored. The Ce-doped Ca1-x Ce x RuO3 (0 ⩽ x ⩽ 0.1) thin films were deposited on LaAlO3 (1 0 0) and SrTiO3 (1 0 0) substrates and studies for low-energy terahertz (THz) carrier dynamics, dc transport and Hall effect. These compositions exhibited a very effective and unusual Hall-carrier switching in both compressive and tensile strain induced epitaxial thin films. The dc resistivity depicts a switching from a non-Fermi liquid to a Fermi liquid behavior without any magnetic phase transition. A discernible and gradual crossover from Drude to Drude-Smith THz dynamic optical conductivity was observed while traversing from pure to 10% Ce-doped CaRuO3 films. Overall, a nearly Fermi liquid behavior, effective carrier switching and unusual features in THz conductivity, were all novel features realized for the first time in physically and/or chemically modified CaRuO3. These new phases highlight the novel subtleties and versatility of the systems lying near the quantum critical point.

14.
Neurointervention ; : 125-129, 2017.
Article in English | WPRIM (Western Pacific) | ID: wpr-730354

ABSTRACT

Intracranial dural arteriovenous fistulae (DAVF) are acquired fistulous communications between dural arterial branches and dural venous sinuses or cortical veins with the nidus located within the leaflets of the duramater. Dementia and Parkinsonism are amongst the rarest of clinical presentations in DAVFs and are important to diagnose early, being treatable with timely intervention. We present an interesting case of a patient who presented with rapidly progressive dementia and features of parkinsonism who was diagnosed to have extensive DAVF and made remarkable recovery after embolization of the fistulae.


Subject(s)
Humans , Central Nervous System Vascular Malformations , Dementia , Fistula , Parkinsonian Disorders , Veins
15.
Sci Rep ; 6: 36726, 2016 11 09.
Article in English | MEDLINE | ID: mdl-27827443

ABSTRACT

Treatment outcome after surgical removal in oral carcinoma is poor due to inadequate methodologies available for marking surgical margins. Even though some methodologies for intraoperative margin assessment are under clinical and preclinical trials for other solid tumours, a promising modality for oral cancer surgery is not developed. Fluorescent-based optical imaging using Near Infrared (NIR) dyes tagged to tumour specific target will be an optimal tool for this purpose. One such target, Gastrin Releasing Peptide Receptor (GRPR) was selected for the study, and its binding peptide, TM1-IR680, was tested for its efficacy for surgical margin prediction in murine orthotopic model of oral cancer, derived from primary samples. Here, for the first time in a preclinical analysis, we show that the size and margin of oral cancer can be predicted, as revealed by 3D-imaging. Interestingly, the peptide was sensitive enough to detect lymph nodes that harboured dispersed tumour cells before colonization, which was impossible to identify by conventional histopathology. We recommend the use of TM1-NIR dyes alone or in combination with other technologies to improve the clinical outcome of oral cancer surgery.


Subject(s)
Carrier Proteins/pharmacology , Mouth Neoplasms , Neoplasm Proteins/metabolism , Neoplasms, Experimental , Optical Imaging , Peptides/pharmacology , Receptors, Bombesin/metabolism , Animals , Cell Line, Tumor , Humans , Lymphatic Metastasis , Mice , Mice, Inbred NOD , Mouth Neoplasms/diagnostic imaging , Mouth Neoplasms/metabolism , Mouth Neoplasms/surgery , Neoplasms, Experimental/diagnostic imaging , Neoplasms, Experimental/metabolism , Neoplasms, Experimental/surgery
17.
PLoS One ; 10(5): e0124210, 2015.
Article in English | MEDLINE | ID: mdl-25997127

ABSTRACT

All life forms are equipped with rapidly acting, evolutionally conserved components of an innate immune defense system that consists of a group of unique and diverse molecules known as host defense peptides (HDPs). A Systematic and Modular Modification and Deletion (SMMD) approach was followed to analyse the structural requirement of B1CTcu5, a brevinin antibacterial peptide amide identified from the skin secretion of frog Clinotarsus curtipes, India, to show antibacterial activity and to explore the active core region. Seventeen SMMD-B1CTcu5 analogs were designed and synthesised by C and N-terminal amino acid substitution or deletion. Enhancement in cationicity by N-terminal Lys/Arg substitution or hydrophobicity by Trp substitution produced no drastic change in bactericidal nature against selected bacterial strains except S. aureus. But the sequential removal of N-terminal amino acids had a negative effect on bactericidal potency. Analog B1CTcu5-LIAG obtained by the removal of four N-terminal amino acids displayed bactericidal effect comparable to, or in excess of, the parent peptide with reduced hemolytic character. Its higher activity was well correlated with the improved inner membrane permeabilisation capacity. This region may act as the active core of B1CTcu5. Presence of C-terminal disulphide bond was not a necessary condition to display antibacterial activity but helped to promote hemolytic nature. Removal of the C-terminal rana box region drastically reduced antibacterial and hemolytic activity of the peptide, showing that this region is important for membrane targeting. The bactericidal potency of the D-peptide (DB1CTcu5) helped to rule out the stereospecific interaction with the bacterial membrane. Our data suggests that both the C and N-terminal regions are necessary for bactericidal activity, even though the active core region is located near the N-terminal of B1CTcu5. A judicious modification at the N-terminal region may produce a short SMMD analog with enhanced bactericidal activity and low toxicity against eukaryotic cells.


Subject(s)
Antimicrobial Cationic Peptides/chemistry , Amino Acid Sequence , Animals , Anti-Bacterial Agents/chemical synthesis , Anti-Bacterial Agents/chemistry , Anti-Bacterial Agents/pharmacology , Anti-Infective Agents/chemical synthesis , Anti-Infective Agents/chemistry , Anti-Infective Agents/pharmacology , Antimicrobial Cationic Peptides/chemical synthesis , Antimicrobial Cationic Peptides/pharmacology , Anura , Biofilms/drug effects , Cell Membrane Permeability , Circular Dichroism , Humans , Microbial Viability/drug effects , Molecular Sequence Data , Protein Structure, Secondary , Staphylococcus aureus/drug effects , Staphylococcus aureus/physiology , Structure-Activity Relationship
18.
Indian Pediatr ; 51(9): 745-6, 2014 Sep.
Article in English | MEDLINE | ID: mdl-25228614

ABSTRACT

BACKGROUND: Klippel-Trenaunay syndrome is a non-heritable venous malformation with bone and soft tissue hypertrophy and cutaneous nevi. CASE CHARACTERISTICS: Neonate with Klippel Trenaunay syndrome born to a mother with past history of Gestational trophoblastic neoplasm. OBSERVATION: Antenatally, a fetal vascular malformation was identified ultrasonologically at 29 weeks gestation. Acute myeloid leukemia was diagnosed in mother at 33 weeks gestation. MESSAGE: A rare association of Klippel Trenaunay syndrome and gestational trophoblastic neoplasm with the possible role of either hyperglycosylated Human Chorionic Gonadotropin or chemotherapy as a link is highlighted.


Subject(s)
Gestational Trophoblastic Disease , Klippel-Trenaunay-Weber Syndrome , Vascular Malformations , Female , Humans , Infant, Newborn , Male , Pregnancy
19.
Biochimie ; 97: 144-51, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24161537

ABSTRACT

HPLC elution profile and MALDI TOF MS analysis of electro-stimulated skin secretion of the Indian Ranid frog Clinotarsus curtipes of the Western Ghats confirmed the presence of multiple peptides. Peptides eluted out of the C18 column at higher hydrophobic solvent region showed antibacterial activity against diverse bacterial strains, including the clinical isolates of V. cholerae and methicillin resistant Staphylococcus aureus (MRSA). Peptidomic analysis of the most potent chromatographic effluent fraction identified five novel peptide amides having sequence homology with brevinin family. These peptides are named as brevinin1CTcu1 (B1CTcu1) to brevinin1CTcu5 (B1CTcu5). Peptide B1CTcu1 is non-haemolytic while the others are haemolytic in nature but all elicited potential antibacterial activity. B1CTcu5 is a twenty-one residue peptide amide having proline hinge region in the middle and the typical C-terminal intramolecular disulfide-bridged hepta peptide domain (Rana box) that is present in most of the brevinin peptides. Analysis of their killing kinetics with E. coli and S. aureus and the ability to induce membrane depolarization proved that these are two independent events. These novel multifunctional peptides play an important role to protect C. curtipes from invading pathogenic microorganisms present in the environment.


Subject(s)
Amphibian Proteins/chemistry , Antimicrobial Cationic Peptides/chemistry , Skin/metabolism , Amino Acid Sequence , Amphibian Proteins/isolation & purification , Amphibian Proteins/pharmacology , Animals , Antimicrobial Cationic Peptides/isolation & purification , Antimicrobial Cationic Peptides/pharmacology , Chromatography, High Pressure Liquid , Electric Stimulation , Erythrocytes/drug effects , Escherichia coli/drug effects , Escherichia coli/growth & development , Hemolysis/drug effects , Methicillin-Resistant Staphylococcus aureus/drug effects , Methicillin-Resistant Staphylococcus aureus/growth & development , Microbial Sensitivity Tests , Molecular Sequence Data , Rabbits , Ranidae , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Staphylococcus aureus/drug effects , Staphylococcus aureus/growth & development , Vibrio cholerae/drug effects , Vibrio cholerae/growth & development
20.
BMC Res Notes ; 5: 389, 2012 Jul 29.
Article in English | MEDLINE | ID: mdl-22838958

ABSTRACT

BACKGROUND: Microsatellite loci are widely used in population and conservation genetic studies of amphibians, but the availability of such markers for tropical and subtropical taxa is currently very limited. In order to develop resources for conservation genetic studies in the genus Indirana, we tested amplification success and polymorphism in 62 previously developed microsatellite loci, in eight Indirana species - including new candidate species. Developing genomic resources for this amphibian taxon is particularly important as it is endemic to the Western Ghats biodiversity hotspot, and harbours several endangered species. FINDINGS: The cross-species amplification success rate varied from 11.3 % to 29.0 % depending on the species, with 29 - 80 % of the amplifying loci being polymorphic. A strong negative correlation between cross-species amplification success (and polymorphism) and genetic distance separating target from source species was observed. CONCLUSIONS: Our results provide additional genetic support for the existence of genetically divergent cryptic species within the genus Indirana. The tested markers should be useful for population and conservation genetic studies in this genus, and in particular, for species closely related to the source species, I. beddomii.


Subject(s)
DNA, Mitochondrial/analysis , Endangered Species , Genetic Loci , Genomics , Microsatellite Repeats , RNA, Ribosomal, 16S/analysis , Ranidae/genetics , Animals , Databases, Genetic , Evolution, Molecular , Genetic Markers , Genomics/methods , India , Polymerase Chain Reaction , Polymorphism, Genetic , Ranidae/classification , Species Specificity
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